YOU SAID:
I was fummoxed whilst trying to understand him
INTO JAPANESE
私は彼を理解しようとしている間にfummoxedでした
BACK INTO ENGLISH
I was fummoxed while trying to understand him
INTO JAPANESE
私は彼を理解しようとしている間にfummoxedでした
BACK INTO ENGLISH
I was fummoxed while trying to understand him
That didn't even make that much sense in English.